mirror of
https://github.com/prometheus/node_exporter.git
synced 2024-12-29 07:29:48 -08:00
c6162312f2
* Add Linux NUMA "numastat" metrics Read the `numastat` metrics from /sys/devices/system/node/node* when reading NUMA meminfo metrics. * Update end-to-end test output. * Add `numastat` metrics as counters. * Add tests for error conditions. * Refactor meminfo numa metrics struct * Refactor meminfoKey into a simple struct of metric data. This makes it easier to pass slices of metrics around. * Refactor tests. * Fixup: Add suggested fixes. * Fixup: More fixes * Add another scanner.Err() return * Add "_total" to counter metrics.
108 lines
2.8 KiB
Go
108 lines
2.8 KiB
Go
// Copyright 2015 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package collector
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import (
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"os"
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"testing"
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)
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func TestMemInfoNuma(t *testing.T) {
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file, err := os.Open("fixtures/sys/devices/system/node/node0/meminfo")
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if err != nil {
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t.Fatal(err)
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}
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defer file.Close()
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memInfo, err := parseMemInfoNuma(file)
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if err != nil {
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t.Fatal(err)
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}
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if want, got := 707915776.0, memInfo[5].value; want != got {
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t.Errorf("want memory Active(anon) value %f, got %f", want, got)
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}
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if want, got := "Active_anon", memInfo[5].metricName; want != got {
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t.Errorf("want metric Active(anon) metricName %s, got %s", want, got)
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}
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if want, got := 150994944.0, memInfo[25].value; want != got {
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t.Errorf("want memory AnonHugePages %f, got %f", want, got)
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}
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file, err = os.Open("fixtures/sys/devices/system/node/node1/meminfo")
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if err != nil {
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t.Fatal(err)
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}
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defer file.Close()
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memInfo, err = parseMemInfoNuma(file)
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if err != nil {
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t.Fatal(err)
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}
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if want, got := 291930112.0, memInfo[6].value; want != got {
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t.Errorf("want memory Inactive(anon) %f, got %f", want, got)
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}
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if want, got := 85585088512.0, memInfo[13].value; want != got {
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t.Errorf("want memory FilePages %f, got %f", want, got)
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}
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}
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func TestMemInfoNumaStat(t *testing.T) {
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file, err := os.Open("fixtures/sys/devices/system/node/node0/numastat")
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if err != nil {
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t.Fatal(err)
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}
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defer file.Close()
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numaStat, err := parseMemInfoNumaStat(file, "0")
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if err != nil {
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t.Fatal(err)
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}
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if want, got := 193460335812.0, numaStat[0].value; want != got {
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t.Errorf("want numa stat numa_hit value %f, got %f", want, got)
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}
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if want, got := "numa_hit_total", numaStat[0].metricName; want != got {
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t.Errorf("want numa stat numa_hit metricName %s, got %s", want, got)
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}
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if want, got := 193454780853.0, numaStat[4].value; want != got {
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t.Errorf("want numa stat local_node %f, got %f", want, got)
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}
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file, err = os.Open("fixtures/sys/devices/system/node/node1/numastat")
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if err != nil {
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t.Fatal(err)
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}
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defer file.Close()
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numaStat, err = parseMemInfoNumaStat(file, "1")
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if err != nil {
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t.Fatal(err)
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}
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if want, got := 59858626709.0, numaStat[1].value; want != got {
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t.Errorf("want numa stat numa_miss %f, got %f", want, got)
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}
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if want, got := 59860526920.0, numaStat[5].value; want != got {
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t.Errorf("want numa stat other_node %f, got %f", want, got)
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}
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}
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